Cats and dogs can hear ultrasound.
350
Cows can sleep standing up, but they can only dream lying down.
745
A scorpion can hold its breath for up to 6 days.
19
On some poorly researched trivia lists it is stated as a fact that a pregnant goldfish is called a twit. This is not true as goldfish lay eggs.
71
Nervous dogs wag their tails to the left, and happy dogs to the right (from the dog’s point of view) – and fellow canines pick up on this lop-sided tail language.
10
Jumping fleas can accelerate 50 times faster than the space shuttle.
218